Tilting device for mowing-machines



(No, Model.) 2 Sheets-Sheet 1.

G. H. BARTLETT. TILTING DEVICE FOR MOWING MACHINES.

No. 441.463. v Patented Nov. 25, 1890.

W1 T NESSES I IN VEN TOR L324 TTORNEI.

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v (No Model.) 2 Sheets-Sheet 2- G; H. BARTLETT. TIL'TING DEVICE FQRMOWING MACHINES.

N0.441,463. J Patented Nov. 25,1890.

W1 T NESSES [N VEN TOR 1,7,3 .4 TTORNEY.

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UNITED STATES PATENT OFEIcE.

GEORGE HERMAN BARTLETT, OF HOOSICK FALLS, NEIV YORK.

TILTING DEVICE FOR MOWlNG-MACHINES SPECIFICATION forming part of LettersPatent No. 441,463, dated November 25, 1890.

Application filed February 24, 1890. Serial No. 341,560. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE HERMAN BART- LETT, a citizen of the UnitedStates, residing at Hoosick Falls, county of Rensselaer, State of NewYork, have invented certain new and useful Improvements in TiltingDevices for Mowing-Machines, of which the following is a full, clear,and exact description, reference being had to the accompanying drawings,forming a part of this specification.

My invention has for its object to provide a simple and elfectivetilting apparatus, and one which may be economical to manufacture. Inmowing-machines the main frame is, as a rule, pivoted upon the axle ofthe carrying or driving Wheels and is supported at its forward end by alead-wheel.

My invention consists in pivoting an arm on the lead-wheel studconnecting this pivotarm to the shoe and to an adjusting-lever mountedon the main frame, whereby the pivot-arm may be rocked on the lead-wheelstud, and consequently the points of the guards tilted up or down, themain frame rocking on the axle of the driving-wheel.

In order that others skilled in the art to which my invention relatesmay fully understand the same, I will now proceed to describe it withreference to the accompanying drawings, in which similar letters ofreference indicate like parts, and in which- Figures 1 and 2 are sideelevations of so much of a mowing-machine as is necessary to illustratemy invention. Fig. 3 is a front perspective view of a portion of themain frame, the shoe, cutting apparatus, and connections of thelead-wheel and shoe. Fig. 4

is a side elevation of part of the main shoe and the pivot-arm. Fig. 5is a section through line as 00, Fig. 4. Fig. 6 is a side elevation ofthe pivot-arm. Fig. 7 is a perspective of a pivot-bearing. Figs. 8, 9,and 10 are rear, side, and front elevations of a bearing-stud.

A is one of the driving and supporting wheels, (shown in dotted lines inFigs. 1 and 2.) A is the polefranie, and A the pole secured thereto.

B is the main frame pivoted on the axle a.

C is the shoe-support, forming a part of the mainframe B, and C is theshoe pivoted to the shoe-support at c c. The finger-bar D, to

which the guard-fingers (Z are attached, is rigidly secured to the shoe0.

F F are brace-rods forming a part of the main frame.

G is the lead-wheel and is journaled on the stud g, which is secured toor formed integral with the pivot-arm H. The stud g is formed hollow,and a securing-bolt g, passing through the stud g and through the leadwheel, sccures the latter on the stud g.

The pivot-arm H extends rearwardly and is perforated at h to receive thebushing 72/, and a bolt 71 passing through the forward portion of theshoe 0 and the bushing h, secures the shoe to the pivot-arm H. Thebushing h forms a bearing for the pivotal connection between thepivot-arm and the shoe. The pivot-arm extends upwardly and is perforatedat h to receive a connecting-rod J, the other end of which is connectedto the tilting -'lever K, pivoted at k on the main frame and providedwith the spring detent mechanism W, to engage the segmental rack L,secured to the main frame. By means of the detent mechanism andsegmental rack L the lever, and consequently the pivot-arm H, may beadjusted and held in any desired position. It is evident that by movingthe lever K the point of the pivot-arm from which the shoe 0' issupported will be raised or de pressed, and that consequently the pointsof the guards will be tilted up or down according to the direction ofmovement of the lever K.

In order to prevent lateral movement of the shoe and pivot-arm, andconsequently cramping of the parts when the guards are tilted, I

extend the shoe beyond its pivotal connection to the pivot-arm andprovide it with a seg mental slot M, concentric with the pivotalconnection of the pivot-arm H and the shoe 0. A hollow bearing-block m,havinga fiattened portion m, fits into the segmental slot M, and a boltm passing through the bearing-block m and through the perforated forwardend of the shoe, secures the parts in place and maintains the alignmentof the shoe and pivot-arm.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is

The combination, in a mowing-machine, of

the pivoted main frame, the shoe secured thereto; a pivot-arm mounted onthe axis of the lead-wheel, a pivotal connection between the pivot-armand the shoe, a segmental slot in the pivot-arm concentric with the axisof the pivotal connection of the arm and shoe a bearing-block on theshoe taking into the segmental slot, and an adj Listing-lever mounted onthe frame and connected to the pivot-arm, substantially as and for thepurpose specified. 10

In Witness whereof I have hereto set my hand this 20th day of February,1890.

GEORGE HERMAN BARTLETT. Witnesses:

WALTER W. LOVEGBOVE, FRANK A. BovIE.

